CN1968428B - CDMA intelligent network system and its method for implementing global roaming service - Google Patents
CDMA intelligent network system and its method for implementing global roaming service Download PDFInfo
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- CN1968428B CN1968428B CN2006100757286A CN200610075728A CN1968428B CN 1968428 B CN1968428 B CN 1968428B CN 2006100757286 A CN2006100757286 A CN 2006100757286A CN 200610075728 A CN200610075728 A CN 200610075728A CN 1968428 B CN1968428 B CN 1968428B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
- H04L12/1453—Methods or systems for payment or settlement of the charges for data transmission involving significant interaction with the data transmission network
- H04L12/1467—Methods or systems for payment or settlement of the charges for data transmission involving significant interaction with the data transmission network involving prepayment
Abstract
The invention relates to a CDMA intelligent network system and relative method for realizing international roaming service, wherein said CDMA intelligent network system comprises service controller attached to network, junction, or international junction, junction or international junction accessing network, and service exchanger of globe mobile communication system. Said service controller has communication with service exchanger. And the service exchanger, junction or international junction of network, the junction or international junction of network are connected.
Description
Technical field
The present invention relates to a kind of code division multiple access (CDMA) intelligent net system, particularly about a kind of method that can realize the CDMA intelligent net system of prepaid user's international roaming real time billing and realize international roaming service.
Background technology
Along with the continuous development of global economic integration, interstate economic interaction and people-to-people contacts are frequent day by day, thereby CDMA is as the mobile communcations system of a new generation, and its user's international roaming demand also just becomes common requirements.
The international signaling of all having signed at present the CDMA roaming in the world between the operator of most of mobile communcations system connect and operator between billing agreements, can be well solved to postpaid service user's international roaming.But for the prepaid user, because its account information is stored on the home service control point (SCP:Service Control Point) of home public land mobile network (HPLMN:Home Public Land Mobile Network), so prepaid user's charge is all carried out on HPLMN.That is to say that the prepaid user is at every turn as caller or called, it all will carry out authentication control by ownership SCP, determines the time of call establishment whether and connection, and remaining sum is essential enough in prepaid user's account, just can call out.And in prepaid user's communication process, HPLMN can carry out call supervision to it in real time and charge.So because the above-mentioned characteristic of prepayment service, it need have higher requirement to network, require calling control and charging regulation to determine simultaneously, thereby present most of operator also can't provide prepaid user's international roaming service by HPLMN.
And under the situation that allows prepaid user's international roaming, for the agreement basis of the CDMA intelligent net system of prior art, it can not improve the international roaming real time billing function that solves the prepaid user, and mainly there are the following problems:
1, for prepaid user's international roaming behind the VPLMN as called:
If the mobile switching centre/Service Switching Point (MSC/SSP:Mobile Switching Center/ServiceSwitching Point) of visit Public Land Mobile Nerwork (VPLMN:Visited Public Land Mobile Network) has wireless intelligent network (WIN:Wireless Intelligent Network) ability, then the attaching position register of HPLMN (HLR:Home Location Register) is understood when prepaid user's terminal is carried out location registers, and this prepaid user's trigger (Trigger) configuration is following to the MSC/SSP of this VPLMN.But because the cooperation of the signaling addressing of operator's general lack of wisdom net side in two countries/area configuration, the MSC/SSP of VPLMN and the SCP of HPLMN can't carry out Signalling exchange, therefore, making can cause when called the SCP of HPLMN when prepaid user's international roaming can't real time billing.
For example, when caller is HPLMN user, because the called flow of intelligent network user is in the beginning office's of exhaling triggering, just on the MSC/SSP of HPLMN, trigger, but because the particularity requirement of CDMA agreement, therefore TANSWER, TDISCONNECT signaling need be reported by the MSC/SSP of VPLMN, and this moment is not owing to the reason of network might be reported to come up, and cause the SCP of HPLMN can't be to called accurate billing.
If the calling subscriber is also when VPLMN, the beginning office of exhaling of calling out is the MSC of VPLMN, after the called number of the MSC of VPLMN identification at this moment is the HPLMN number, the gateway exchange that calling is transferred to HPLMN carries out the triggering of C net called service logic, it is basic identical that signaling process and HPLMN user dial the situation that just roams into VPLMN user, therefore causes the SCP of HPLMN can't the problem of called accurate billing be existed too.
2, make a call behind VPLMN for prepaid user's international roaming:
If the MSC/SSP of VPLMN has the WIN ability, then the HLR of HPLMN can descend this user's Trigger configuration to the MSC/SSP of this VPLMN when prepaid user's terminal is carried out location registers.But because the cooperation of the signaling addressing of two countries operator general lack of wisdom net side configuration, the MSC/SSP of VPLMN and the SCP of HPLMN can't carry out Signalling exchange, therefore when the prepaid user makes a call, the MSC/SSP of VPLMN can't carry out authentication to the prepaid user, causes the prepaid user to make a call.
If the MSC/SSP of VPLMN does not have the WIN ability, then the MSC/SSP of VPLMN not can with the mutual signaling of the SCP of HPLMN, therefore will not be subjected to the control of the SCP of HPLMN after prepaid user's international roaming, cause that the prepaid user is the same with the postpaid service user can arbitrarily to make a call.
In sum, the calling of the realization that the CDMA intelligent network of prior art can't be perfect after to prepaid user's international roaming controlled in real time and chargeed, and therefore can't carry out prepaid user's international roaming service.
Summary of the invention
The technical problem to be solved in the present invention provides the method for a kind of CDMA intelligent net system and this CDMA intelligent net system realization international roaming service.
For solving the problems of the technologies described above, the objective of the invention is to be achieved through the following technical solutions.
A kind of CDMA intelligent net system, it comprises: the business control device of home network, gateway exchange or international gateway, the gateway exchange of visited network or international gateway, the service exchange device that also comprises global system for mobile communications, form communication between wherein said business control device and the service exchange device, form speech channel between the gateway exchange of the gateway exchange of described service exchange device, home network or international gateway and visited network or the international gateway.
It between the service exchange device of described business control device and described global system for mobile communications mobile network by the global system for mobile communications customization applying portion agreement communication that strengthens logic.
Described CDMA intelligent net system also comprises mobile switching centre/service exchange device, the attaching position register of home network, and the MAP agreement by the cdma wireless intelligent network between the business control device of the mobile switching centre/service exchange device of described home network, attaching position register and home network transmits signaling.
Described CDMA intelligent net system also comprises the mobile switching centre/service exchange device of visited network, and the mobile switching centre/service exchange device of described home network, the mobile switching centre/service exchange device of visited network insert the speech channel that forms between the gateway exchange of the gateway exchange of service exchange device, home network of described global system for mobile communications or international gateway and visited network or the international gateway respectively.
Mobile switching centre/the service exchange device of described visited network is connected with prepaid user in the international roaming, and the mobile switching centre/service exchange device of described home network is connected with another user, makes between the described user and forms session.
A kind of CDMA intelligent net system is realized the method for international roaming service, and it may further comprise the steps:
A. receive call request;
B. determine that called prepaid user's account balance is enough, and in the international roaming;
C. notify the mobile switching centre/service exchange device of visited network, distribute roaming number and be back to the business control device of home network by the mobile switching centre of visited network/service exchange device;
D. the mobile switching centre of home network/service exchange device is called out the service exchange device that speech channel is routed to global system for mobile communications, business control device begins to carry out call monitoring, issue the service exchange device of roaming number to global system for mobile communications, the service exchange device of global system for mobile communications is called out route, and the mobile switching centre/service exchange device that connects visited network is to call establishment.
If caller is positioned at home public land mobile network, call request directly is sent to the mobile switching centre/service exchange device of described home network; If caller is positioned at the visit Public Land Mobile Nerwork, call request is forwarded to the gateway exchange or the international gateway of home network.
At step B) in comprise and determine to trigger called IN service called IN process, and to inquire about the address of the mobile switching centre/service exchange device of described visited network.
At step B) in determine that called IN service comprises following flow process:
B-1) mobile switching centre/service exchange device of described home network sends location request message to attaching position register;
B-2) attaching position register is to the mobile switching centre/service exchange device return results message of described home network.
At step B) in trigger called IN process, and the address of inquiring about the mobile switching centre/service exchange device of described visited network comprises following flow process:
B-3) mobile switching centre/service exchange device of described home network triggers called IN process;
B-4) business control device determines that the user has activated prepayment service and account balance is enough, and international roaming service has been opened in application, then business control device sends request to this user's attaching position register, the address of the mobile switching centre/service exchange device of the visited network of inquiring user visit;
B-5) the attaching position register return results is given business control device.
At step C) in comprise following flow process:
C-1) business control device confirms that this user is after the international roaming and user balance is enough kept this calling, send request to attaching position register, attaching position register sends determines the mobile switching centre/service exchange device of roaming number message to described visited network, and the mobile switching centre of described visited network/service exchange device is distributed roaming number and returned to attaching position register;
C-2) attaching position register sends return results message to business control device.
At step C-1) in the message that transmits between the mobile switching centre/service exchange device of attaching position register and described visited network all pass through the transfer of VLR Visitor Location Register.
At step D) in comprise following flow process:
D-1) mobile switching centre of described home network/service exchange device is called out the service exchange device that speech channel is routed to global system for mobile communications, and the service exchange device of global system for mobile communications triggers IN process;
D-2) business control device is in IN process, the roaming number that inquiry is preserved is analyzed called position, begins to charge, and with the following service exchange device to global system for mobile communications of roaming number, the service exchange device of indication global system for mobile communications is called out route;
D-3) service exchange device of global system for mobile communications arrives call proceeding according to roaming number the mobile switching centre/service exchange device of described visited network;
D-4) mobile switching centre/service exchange device of described visited network connects described prepaid user, finishes call proceeding.
At step D-1) in comprise following flow process:
D-1-1) business control device is preserved roaming number, and sends the mobile switching centre/service exchange device of return results message to described home network;
D-1-2) mobile switching centre/service exchange device of described home network is indicated according to route, the calling speech channel is routed directly to the service exchange device of global system for mobile communications;
D-1-3) service exchange device of global system for mobile communications triggers IN process according to the called number prefix;
At flow process D-3) in, mobile switching centre/the service exchange device of described home network continues according to roaming number, mobile switching centre/the service exchange device that connects described visited network, and the mobile switching centre/service exchange device by visited network and called foundation are called out.
Described CDMA intelligent net system realizes that the method for international roaming service also comprises step e. end of conversation, the service exchange device of global system for mobile communications reports charging report to give business control device, and is deducted fees and call list by business control device.
A kind of CDMA intelligent net system is realized the method for international roaming service, and it may further comprise the steps:
A. receive prepaid user's request of making a call;
B. determine that the prepaid user opens international roaming, and account balance is enough;
C. notify the mobile switching centre/service exchange device of visited network, distribute roaming number and be back to the business control device of home network by the mobile switching centre of visited network/service exchange device;
D. the service exchange device of global system for mobile communications is set up the caller speech channel, business control device issues the service exchange device of roaming number to global system for mobile communications, and begin to carry out call monitoring, the service exchange device of global system for mobile communications is set up called speech channel, with the called bridge joint of caller, realize conversation.
In steps A) in, described prepaid user dials condition code, and the mobile switching centre/service exchange device of visited network receives described condition code.
At step B) in comprise following flow process:
B-1) mobile switching centre of described visited network/service exchange device sends feature request to business control device;
B-2) after described business control device is received request, respond mobile switching centre/service exchange device that visited network is given in response;
B-3) business control device determines that the user has activated prepayment service and account balance is enough, and applies for having opened international roaming service, and then business control device sends to attaching position register and determines roaming number message.
At step B-1) and B-2) described in the message that transmits between the mobile switching centre/service exchange device of visited network and the business control device all pass through the transfer of attaching position register.
At step C) in comprise following flow process:
C-1) attaching position register sends and determines the mobile switching centre/service exchange device of roaming number message to described visited network, and the mobile switching centre of described visited network/service exchange device is distributed roaming number and returned to attaching position register;
C-2) attaching position register sends return results message to business control device.
At step C-1) in the message that transmits between the mobile switching centre/service exchange device of attaching position register and described visited network all pass through the transfer of VLR Visitor Location Register.
At step D) in the service exchange device of global system for mobile communications set up the caller speech channel and comprise following flow process:
D-1) business control device determines that user balance is enough, preserves roaming number, and notifies described prepaid user's Waiting for Call to continue;
D-2) business control device issues the service exchange device that the pull-up message related to calls is given global system for mobile communications, and carries out the caller condition monitoring, and the service exchange device of global system for mobile communications triggers described prepaid user's intelligent process to business control device;
D-3) service exchange device of global system for mobile communications is sent out initial address message according to roaming number to international gateway, international gateway is sent out the mobile switching centre/service exchange device of initial address message to visited network again, the mobile switching centre of described visited network/service exchange device return results;
D-4) after the service exchange device of global system for mobile communications is received results messages, report to business control device and to set up speech channel message, take the caller circuit resource, and begin described prepaid user's playback.
At step D) service exchange device of global system for mobile communications sets up called speech channel, with the called bridge joint of caller, realizes comprising in the conversation following flow process:
D-5) business control device issues the service exchange device of pull-up message related to calls to global system for mobile communications once more;
D-6) service exchange device of global system for mobile communications routes the call to international gateway according to the pull-up message related to calls;
D-7) called party answer after the service exchange device of global system for mobile communications is received results messages, reports to business control device and to set up speech channel message, takies called circuit resource, with the called bridge joint of caller, finishes call proceeding.
Described CDMA intelligent net system realizes that the method for international roaming service also comprises step e. end of conversation, the service exchange device of global system for mobile communications reports charging report to give business control device, and is deducted fees and call list by business control device.
Above technical scheme as can be seen, introduce the service exchange device of global system for mobile communications in the method for CDMA intelligent net system of the present invention and this CDMA intelligent net system realization international roaming service, the calling procedure complete business control device that be triggered to home network of service exchange device by global system for mobile communications during with prepaid user's international roaming, business control device by home network carries out call monitoring and real time billing according to prepaid user's remaining sum situation, thereby reached the purpose that the support prepaid user carries out international roaming service.
Description of drawings
Fig. 1 is the networking schematic diagram of CDMA intelligent net system of the present invention.
Fig. 2 is positioned at HPLMN as the calling subscriber, and the called subscriber is when being positioned at the prepaid user of VPLMN, the calling schematic diagram of CDMA intelligent net system of the present invention.
Fig. 3 is positioned at HPLMN as the calling subscriber, and the called subscriber is when being positioned at the prepaid user of VPLMN, the concrete signaling process schematic diagram of CDMA intelligent net system of the present invention.
Fig. 4 is when the calling subscriber is the prepaid user of international roaming, the calling schematic diagram of CDMA intelligent net system of the present invention.
Fig. 5 is when the calling subscriber is the prepaid user of international roaming, the concrete signaling process schematic diagram of CDMA intelligent net system of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, further specify the present invention.
Please refer to Fig. 1, is the networking schematic diagram of CDMA intelligent net system of the present invention.This CDMA intelligent net system comprises home public land mobile network (HPLMN) and visit Public Land Mobile Nerwork (VPLMN), this HPLMN comprises attaching position register (HLR), business control device (SCP), mobile switching centre/service exchange device (MSC/SSP1), the service exchange device (G/SSP) of global system for mobile communications (GSM:Global System for MobileCommunication), gateway exchange or the international gateway (GMSC/ISC1) of CDMA, and this VPLMN comprises GMSC/ISC2 and MSC/SSP2.Wherein solid line is represented user's speech channel, MAP (CDMA WINMAP) agreement of code division multiple access wireless intelligent network is represented in two-dot chain line, and dotted line represents that the mobile network of global system for mobile communications strengthens customization applying portion (GSM CAP) agreement of logic.
In this CDMA intelligent net system, transmit signaling by CDMA WIN MAP between the MSC/SSP1 of HPLMN, HLR and the SCP, then by the communication of GSMCAP agreement, then form speech channel between MSC/SSP1, G/SSP, GMSC/ISC1, GMSC/ISC2 and the MSC/SSP2 between the SCP of HPLMN and the G/SSP.
Because the signaling process of G net is fairly perfect, therefore introducing GSM CAMEL Application Part and G/SSP can carry out triggering, control and the real time billing of international nomadism call flow process in CDMA intelligent net system of the present invention, can make operator that prepaid user's international roaming service can be provided.
Below two kinds of different call case illustrate that CDMA intelligent net system of the present invention realizes the concrete signaling process of the method for international roaming service respectively.Wherein first kind of call case is that the calling subscriber is positioned at HPLMN, and the called subscriber is the prepaid user who is positioned at VPLMN.Second kind of call case is that the calling subscriber is the prepaid user who is positioned at VPLMN.
Please together referring to figs. 2 and 3.Fig. 2 is positioned at HPLMN as the calling subscriber, and the called subscriber is when being positioned at the prepaid user of VPLMN, the calling schematic diagram of CDMA intelligent net system of the present invention.Fig. 3 is the concrete signaling process schematic diagram of CDMA intelligent net system of the present invention among Fig. 2.Wherein on behalf of the flow process of this calling and the step 1 of signaling process, the numeral among this Fig. 2,31 to 16 arrive step 16 respectively.Concrete calling explanation and signaling process are described as follows:
Step 1: when the user MSa that is positioned at HPLMN sends when calling out to the prepaid user MSb that is positioned at VPLMN, this moment, the MSCa of HPLMN can receive the address digit (being directory number MDN) of call and called mobile station;
Step 2:MSCa triggers the Mobile_Termination trigger, and to the HLR of HPLMN transmission LOCREQ, wherein the TRANSCAP parameter indicates MSCa and can handle the TRIGADDRLIST parameter, and the TRIGTYPE parameter indicates and triggered Mobile_Termination (32) trigger;
Step 3:HLR sends locreq return results message to MSCa, wherein among the locreq except that other mandatory parameter, comprise that also triggering address list (TRIGADDRLIST) is arranged in the user data inventory (profile), and dispose triggers such as Initial_Termination, Location, Called_Routing_Address_Available;
Step 4:MSCa triggers the Initial_Termination trigger, and sends ANLYZD message to the SCP that indicates HPLMN in the TRIGADDRLIST parameter, wherein is provided with the TRIGTYPE parameter and indicates and triggered the Initial_Termination trigger;
Step 5:SCP determines that called prepaid user MSb has activated the PPC business and account balance is enough, and applies for having opened international roaming service, and then SCP sends SMSREQ, the address of inquiring user visited MSC to the ownership HLR of this called prepaid user MSb;
Step 6:HLR returns SMSADDR and gives SCP.SCP analyzes this SMSADDR (GT form) and is external MSC, the then processing of execution in step 7; If SCP analyzes the MSC that this SMSADDR is this country, then handle by normal called flow;
Step 7:SCP judges that this called prepaid user MSb is after international roaming and user balance are enough kept this calling, send LOCREQ to HLR, the TRIGTYPE parameter that wherein comprises indicates and has triggered Location (34) trigger, uses same BillingID;
Step 8:HLR determines that call treatment should continue, and send ROUTREQ message to VLR Visitor Location Register (VLR:Visited Location Register), change ROUTREQ message before the VLR and give MSCb, MSCb distribution T LDN number also returns to VLR to the result, and VLR returns to HLR to the result.HLR sends locreq return results message to SCP, and order is routed to the user;
Step 9:SCP preserves the value of TLDN.Send anlyzd return results message to MSCa, comprising the DMH_SVCID parameter be indicated as being and carry out the professional DMH_SVCID=128 of PPC, the PSTNTermination among the TerminationList adds before the called number that route prefix is: the xxx+ called number;
This moment, this service logic can't finish, and need wait for a period of time, and to respond ANLYZD (39), guaranteed call connection.Also need to wait for TANSWER or conditional forwarding flow process a period of time, to support the conditional forwarding flow process.
Step 10:MSCa indicates according to route, will call out speech channel and be routed directly to G/SSP;
Step 11:G/SSP presses access code and triggers calling procedure according to the called number prefix;
Step 12:SCP inquires about the TLDN value of preserving in the 7th step in G net IN process, analyze called position, begins to charge.And the TLDN number is directly following to G/SSP, indication G/SSP calls out route;
Step 13:G/SSP connects the GMSC/ISC1 of the HPLMN country of MSb according to the TLDN number initial address message (IAM:InitialAddress Message) that continues;
Step 14: the GMSC/ISC1 of user MSb ownership HPLMN connects the GMSC/ISC2 of the VPLMN country of MSb according to the TLDN IAM that continues;
The GMSC/ISC2 of the VPLMN country of step 15:MSb is with the IAM of call proceeding to MSCb;
Step 16:MSCb connects MSb, finishes call proceeding;
Last end of calling, G/SSP reports ACR to give SCP, and SCP deducts fees and call list.
By above-mentioned concrete calling procedure and signaling process as can be seen, introduce GSM CAMEL Application Part and G/SSP in the CDMA intelligent net system of the present invention, the complete SCP that is triggered to HPLMN of called flow by G/SSP during with prepaid user's international roaming, SCP by HPLMN carries out call monitoring and real time billing according to prepaid user's remaining sum situation, thereby reached the purpose that the support prepaid user carries out international roaming service.
Certainly, as calling subscriber during also at VPLMN, the beginning office of exhaling of calling out is the MSCb of VPLMN, after the called number of the MSCb of VPLMN identification at this moment is the HPLMN number, the gateway exchange that calling is transferred to HPLMN carries out the triggering of C net called service logic, and it is basic identical that signaling process and HPLMN user dial the situation that just roams into VPLMN user.
Please together with reference to figure 4 and Fig. 5, Fig. 4 is when the calling subscriber is the prepaid user of international roaming, the calling schematic diagram of CDMA intelligent net system of the present invention, Fig. 5 are when the calling subscriber is the prepaid user of international roaming, the concrete signaling process schematic diagram of CDMA intelligent net system of the present invention.Wherein this Fig. 4 numeral 1 to 20 is represented the flow process of this calling, and on behalf of the flow process of this calling and the step 1 of signaling process, the numeral 1 to 19 among Fig. 5 arrive step 19 respectively.Its concrete calling explanation and signaling process is described as follows:
Step 1: when the prepaid user MSa of international roaming wishes to make a call, dial condition code (FEATURE CODE), form is: " * FC* called number ", wherein press the international long-distance prefix and the called national code of ownership state before the called number;
The MSCa of step 2:VPLMN sends the HLR of FEATREQ to the HPLMN of prepaid user Msa according to the regulation of IS-41D;
The HLR of step 3:HPLMN transmits the SCP that FEATREQ gives HPLMN according to the regulation of IS-771;
The SCP of step 4:HPLMN normally responds the HLR that featreq gives HPLMN after receiving the FEATREQ request, the HLR of HPLMN is transmitted to the MSCa of VPLMN again;
Step 5:SCP determines that the prepaid user MSa of caller has activated the PPC business and account balance is enough, and applies for having opened international roaming service, and then SCP sends LOCREQ to HLR.SCP uses a BillingID who oneself generates;
Step 6:HLR sends ROUTREQ message to VLR, changes ROUTREQ message before the VLR and gives MSCa, and MSCa distribution T LDN number also returns to VLR to the result, and VLR returns to HLR to the result.HLR sends locreq return results message to SCP;
After step 7:SCP analysis user remaining sum is enough kept this calling, preserve the value of TLDN.And SCP sends SMS notification user MSa Waiting for Call process and sets up;
Step 8:SCP issues ICA and gives G/SSP, and wherein destinationRoutingAddress fills in the number that access code adds user MSa: XXX+ called number, CallingPartyNumber are the number of user MSb;
Step 9:SCP issues RRBE, monitoring DP7_R (LegID=2), CONTINUE.Wherein the RRBE here carries out condition monitoring at MO_CCF1, and this moment, the virtual calling end was ICA, with MSb user be that intelligent subscriber is irrelevant;
The access code of step 10:G/SSP before according to called number triggers user MSa T end intelligent process, sends out IDP to SCP, and SCP issues RRBE/AC/CONNECT, wherein with the TLDN that preserves previously down to G/SSP.At this moment, SCP carries out the remaining sum budget and begins to carry out call monitoring the active user;
Step 11:G/SSP sends out IAM according to TLDN to international gateway, and international gateway is sent out the MSCa of IAM to user MSa place again.MSCa returns ACM/ANM;
Step 12:G/SSP reports DP7 (LegID=2) to SCP after receiving ANM (user MSa replys);
SCP issues ProvideAvailDN (can be with the playback indication), and SRF enquiry circuit resource is distributed DN (distinguish name), returns AvailDNProvided;
SCP issues ConnectOnePort, and SRF takies this resource, returns PortConnected.If band playback indication begins the playback to user MSa this moment among the top ProvideAvailDN.
Step 13:SCP issues ICA, and wherein calling number is a user MSa number, and destinationRoutingAddress is the number of user MSb.Issue RRBE monitoring EDP7 (LegID=2) (setting up the MO condition monitoring of user MSa) simultaneously, issue Continue;
Step 14:G/SSP routes the call to international gateway according to the number of user MSb;
Step 15: user MSb replys, and G/SSP reports ERB (DP7, LegID=2) (MO_CCF2) to SCP;
Step 16:SCP issues ProvideAvailDN, and SRF inquires the circuit resource of user MSb, distributes DN, returns AvailDNProvided;
SCP issues BridgePorts, and SRF takies the circuit resource of user MSb, and with user MSa/MSb bridge joint, returns PortsBridged, and user MSa/MSb can normal talking.
Step 17: user MSa call release, MSa user at first monitors this incident at the MT end, reports ACR and ERB (DP17), and SCP issues the T end that ReleaseCall discharges user MSa.At this moment, SCP charges and deducts fees this user;
Step 18: next be that MO_CCF1 detects this incident, report ERB (DP9), SCP issues ReleaseCall;
Step 19: MO-CCF1 and MO-CCF2 Calling Side each other in the design, MO-CCF sends to MO-CCF2 with release message, reports ERB (DP9), and SCP issues ReleaseCall.
In the above-mentioned flow process, wherein ICA_1 is as the virtual Calling Side of MO-CCF1, and ICA_2 is as the virtual Calling Side of MO-CCF2, MO-CCF1 and MO-CCF2 Calling Side each other in the specific implementation.
By above-mentioned concrete calling procedure and signaling process as can be seen, introduce GSM CAMEL Application Part and G/SSP in the CDMA intelligent net system of the present invention, the complete SCP that is triggered to HPLMN of calling procedure by G/SSP during with prepaid user's international roaming, SCP by HPLMN carries out call monitoring and real time billing according to prepaid user's remaining sum situation, thereby reached the purpose that the support prepaid user carries out international roaming service.
More than to a kind of CDMA intelligent net system provided by the present invention and realize the method for international roaming service.Used specific example herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for the general technology foundation thought of the present invention of this area, the part that on specific implementations and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (24)
1. CDMA intelligent net system, it comprises: the business control device of home network, gateway exchange or international gateway, the gateway exchange of visited network or international gateway, it is characterized in that: the service exchange device that also comprises global system for mobile communications, form communication between wherein said business control device and the service exchange device, described service exchange device, forming speech channel between the gateway exchange of the gateway exchange of home network or international gateway and visited network or the international gateway, is mobile network by the global system for mobile communications customization applying portion agreement communication that strengthens logic between the service exchange device of described business control device and described global system for mobile communications.
2. CDMA intelligent net system as claimed in claim 1, it is characterized in that: also comprise mobile switching centre/service exchange device, the attaching position register of home network, the MAP agreement by the cdma wireless intelligent network between the business control device of the mobile switching centre/service exchange device of described home network, attaching position register and home network transmits signaling.
3. CDMA intelligent net system as claimed in claim 2, it is characterized in that: also comprise the mobile switching centre/service exchange device of visited network, the mobile switching centre/service exchange device of described home network, the mobile switching centre/service exchange device of visited network insert the speech channel that forms between the gateway exchange of the gateway exchange of service exchange device, home network of described global system for mobile communications or international gateway and visited network or the international gateway respectively.
4. CDMA intelligent net system as claimed in claim 3, it is characterized in that: the mobile switching centre/service exchange device of described visited network is connected with prepaid user in the international roaming, mobile switching centre/the service exchange device of described home network is connected with another user, makes between the described user and forms session.
5. a CDMA intelligent net system is realized the method for international roaming service, it is characterized in that: said method comprising the steps of:
A. receive call request;
B. determine that called prepaid user's account balance is enough, and in the international roaming;
C. notify the mobile switching centre/service exchange device of visited network, distribute roaming number and be back to the business control device of home network by the mobile switching centre of visited network/service exchange device;
D. the mobile switching centre of home network/service exchange device is called out the service exchange device that speech channel is routed to global system for mobile communications, business control device begins to carry out call monitoring, issue the service exchange device of roaming number to global system for mobile communications, the service exchange device of global system for mobile communications is called out route, and the mobile switching centre/service exchange device that connects visited network is to call establishment.
6. CDMA intelligent net system as claimed in claim 5 is realized the method for international roaming service, it is characterized in that: if caller is positioned at home public land mobile network, call request directly is sent to the mobile switching centre/service exchange device of described home network; If caller is positioned at the visit Public Land Mobile Nerwork, call request is forwarded to the gateway exchange or the international gateway of home network.
7. CDMA intelligent net system as claimed in claim 5 is realized the method for international roaming service, it is characterized in that: at step B) in comprise and determine called IN service, trigger called IN process, and inquire about the address of the mobile switching centre/service exchange device of described visited network.
8. CDMA intelligent net system as claimed in claim 7 is realized the method for international roaming service, it is characterized in that: at step B) in determine that called IN service comprises following flow process:
B-1) mobile switching centre/service exchange device of described home network sends location request message to attaching position register;
B-2) attaching position register is to the mobile switching centre/service exchange device return results message of described home network.
9. realize the method for international roaming services as claim 7 or 8 described CDMA intelligent net systems, it is characterized in that: at step B) in trigger called IN process, and the address of inquiring about the mobile switching centre/service exchange device of described visited network comprises following flow process:
B-3) mobile switching centre/service exchange device of described home network triggers called IN process;
B-4) business control device determines that the user has activated prepayment service and account balance is enough, and international roaming service has been opened in application, then business control device sends request to this user's attaching position register, the address of the mobile switching centre/service exchange device of the visited network of inquiring user visit;
B-5) the attaching position register return results is given business control device.
10. CDMA intelligent net system as claimed in claim 5 is realized the method for international roaming service, it is characterized in that: at step C) in comprise following flow process:
C-1) business control device confirms that this user is after the international roaming and user balance is enough kept this calling, send request to attaching position register, attaching position register sends determines the mobile switching centre/service exchange device of roaming number message to described visited network, and the mobile switching centre of described visited network/service exchange device is distributed roaming number and returned to attaching position register;
C-2) attaching position register sends return results message to business control device.
11. CDMA intelligent net system as claimed in claim 10 is realized the method for international roaming service, it is characterized in that: at step C-1) in the message that transmits between the mobile switching centre/service exchange device of attaching position register and described visited network all pass through the transfer of VLR Visitor Location Register.
12. CDMA intelligent net system as claimed in claim 5 is realized the method for international roaming service, it is characterized in that: at step D) in comprise following flow process:
D-1) mobile switching centre of described home network/service exchange device is called out the service exchange device that speech channel is routed to global system for mobile communications, and the service exchange device of global system for mobile communications triggers IN process;
D-2) business control device is in IN process, the roaming number that inquiry is preserved is analyzed called position, begins to charge, and with the following service exchange device to global system for mobile communications of roaming number, the service exchange device of indication global system for mobile communications is called out route;
D-3) service exchange device of global system for mobile communications arrives call proceeding according to roaming number the mobile switching centre/service exchange device of described visited network;
D-4) mobile switching centre/service exchange device of described visited network connects described prepaid user, finishes call proceeding.
13. CDMA intelligent net system as claimed in claim 12 is realized the method for international roaming service, it is characterized in that: at step D-1) in comprise following flow process:
D-1-1) business control device is preserved roaming number, and sends the mobile switching centre/service exchange device of return results message to described home network;
D-1-2) mobile switching centre/service exchange device of described home network is indicated according to route, the calling speech channel is routed directly to the service exchange device of global system for mobile communications;
D-1-3) service exchange device of global system for mobile communications triggers IN process according to the called number prefix.
14. method as claim 12 or 13 described CDMA intelligent net systems realization international roaming services, it is characterized in that: at flow process D-3) in, mobile switching centre/the service exchange device of described home network continues according to roaming number, mobile switching centre/the service exchange device that connects described visited network, and the mobile switching centre/service exchange device by visited network and called foundation are called out.
15. CDMA intelligent net system as claimed in claim 5 is realized the method for international roaming service, it is characterized in that: also comprise step e. end of conversation, the service exchange device of global system for mobile communications reports charging report to give business control device, and is deducted fees and call list by business control device.
16. a CDMA intelligent net system is realized the method for international roaming service, it is characterized in that: said method comprising the steps of:
A. receive prepaid user's request of making a call;
B. determine that the prepaid user opens international roaming, and account balance is enough;
C. notify the mobile switching centre/service exchange device of visited network, distribute roaming number and be back to the business control device of home network by the mobile switching centre of visited network/service exchange device;
D. the service exchange device of global system for mobile communications is set up the caller speech channel, business control device issues the service exchange device of roaming number to global system for mobile communications, and begin to carry out call monitoring, the service exchange device of global system for mobile communications is set up called speech channel, with the called bridge joint of caller, realize conversation.
17. CDMA intelligent net system as claimed in claim 16 is realized the method for international roaming service, it is characterized in that: in steps A) in, described prepaid user dials condition code, and the mobile switching centre/service exchange device of visited network receives described condition code.
18. CDMA intelligent net system as claimed in claim 16 is realized the method for international roaming service, it is characterized in that: at step B) in comprise following flow process:
B-1) mobile switching centre of described visited network/service exchange device sends feature request to business control device;
B-2) after described business control device is received request, respond mobile switching centre/service exchange device that visited network is given in response;
B-3) business control device determines that the user has activated prepayment service and account balance is enough, and applies for having opened international roaming service, and then business control device sends to attaching position register and determines roaming number message.
19. CDMA intelligent net system as claimed in claim 18 is realized the method for international roaming service, it is characterized in that: at step B-1) and B-2) described in the message that transmits between the mobile switching centre/service exchange device of visited network and the business control device all pass through the transfer of attaching position register.
20. CDMA intelligent net system as claimed in claim 16 is realized the method for international roaming service, it is characterized in that: at step C) in comprise following flow process:
C-1) attaching position register sends and determines the mobile switching centre/service exchange device of roaming number message to described visited network, and the mobile switching centre of described visited network/service exchange device is distributed roaming number and returned to attaching position register;
C-2) attaching position register sends return results message to business control device.
21. CDMA intelligent net system as claimed in claim 20 is realized the method for international roaming service, it is characterized in that: at step C-1) in the message that transmits between the mobile switching centre/service exchange device of attaching position register and described visited network all pass through the transfer of VLR Visitor Location Register.
22. CDMA intelligent net system as claimed in claim 16 is realized the method for international roaming service, it is characterized in that: at step D) in the service exchange device of global system for mobile communications set up the caller speech channel and comprise following flow process:
D-1) business control device determines that user balance is enough, preserves roaming number, and notifies described prepaid user's Waiting for Call to continue;
D-2) business control device issues the service exchange device that the pull-up message related to calls is given global system for mobile communications, and carries out the caller condition monitoring, and the service exchange device of global system for mobile communications triggers described prepaid user's intelligent process to business control device;
D-3) service exchange device of global system for mobile communications is sent out initial address message according to roaming number to international gateway, international gateway is sent out the mobile switching centre/service exchange device of initial address message to visited network again, the mobile switching centre of described visited network/service exchange device return results;
D-4) after the service exchange device of global system for mobile communications is received results messages, report to business control device and to set up speech channel message, take the caller circuit resource, and begin described prepaid user's playback.
23. method as claim 16 or 22 described CDMA intelligent net systems realization international roaming services, it is characterized in that: at step D) service exchange device of global system for mobile communications sets up called speech channel, with the called bridge joint of caller, realize comprising in the conversation following flow process:
D-5) business control device issues the service exchange device of pull-up message related to calls to global system for mobile communications once more;
D-6) service exchange device of global system for mobile communications routes the call to international gateway according to the pull-up message related to calls;
D-7) called party answer after the service exchange device of global system for mobile communications is received results messages, reports to business control device and to set up speech channel message, takies called circuit resource, with the called bridge joint of caller, finishes call proceeding.
24. CDMA intelligent net system as claimed in claim 16 is realized the method for international roaming service, it is characterized in that: also comprise step e. end of conversation, the service exchange device of global system for mobile communications reports charging report to give business control device, and is deducted fees and call list by business control device.
Priority Applications (3)
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| CN2006100757286A CN1968428B (en) | 2006-04-26 | 2006-04-26 | CDMA intelligent network system and its method for implementing global roaming service |
| PCT/CN2007/000343 WO2007121646A1 (en) | 2006-04-26 | 2007-01-31 | A cdma intelligent network system and its method, device for realizing international roaming service |
| US12/243,399 US8060087B2 (en) | 2006-04-26 | 2008-10-01 | CDMA intelligent network system and its method, device for realizing international roaming service |
Applications Claiming Priority (1)
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| CN2006100757286A CN1968428B (en) | 2006-04-26 | 2006-04-26 | CDMA intelligent network system and its method for implementing global roaming service |
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| CN1968428B true CN1968428B (en) | 2010-07-07 |
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Cited By (1)
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| US8060087B2 (en) | 2006-04-26 | 2011-11-15 | Huawei Technologies Co., Ltd. | CDMA intelligent network system and its method, device for realizing international roaming service |
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| CN102026135B (en) * | 2009-09-10 | 2013-09-25 | 华为技术有限公司 | Method, equipment and system for intelligently correcting dialed number of prepaid roaming user |
| CN102405617B (en) * | 2010-09-02 | 2014-06-04 | 华为技术有限公司 | Charging monitoring method, device and sysytem |
| CN101969628B (en) * | 2010-11-02 | 2013-02-13 | 中国电信股份有限公司 | International roaming callback service platform of CDMA (Code Division Multiple Access) network, system and method |
| US8811282B2 (en) * | 2011-03-23 | 2014-08-19 | Telefonaktiebolaget L M Ericsson (Publ) | Call delivery to an IMS network for a mobile directory number homed in a 2G wireless network |
| CN102892101B (en) * | 2011-07-19 | 2017-11-14 | 中兴通讯股份有限公司 | A kind of realization method and system of intelligent roaming business |
| CN103781042A (en) * | 2012-10-24 | 2014-05-07 | 中国电信股份有限公司 | Method for carrying out service charging on prepaid called user in roaming state |
| CN107888547B (en) * | 2016-09-30 | 2022-03-18 | 中兴通讯股份有限公司 | Method and device for realizing international roaming incoming call blocking service and application server |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20090036122A1 (en) | 2009-02-05 |
| CN1968428A (en) | 2007-05-23 |
| WO2007121646A1 (en) | 2007-11-01 |
| US8060087B2 (en) | 2011-11-15 |
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